在不在

be there?

→ 在
phrase Uncommon #11,991
be there? An informal question pattern asking whether someone is present or around; it can also refer to whether something is still there.
CH: 你爸爸在不在家?
EN: Is your dad at home?

我不知道你在不在

I don't know if you're there.

— 吾栖之肤 (2011)

请问顾先生在不在?

Excuse me, is Mr. Gu available?

— 花样年华 (2000)

志乃在不在?

Is Shino there?

— 七武士 (1954)

刚才我梦见你哥在隔壁的巷子所以你是过来看看他还在不在?

I just dreamed your brother was in the alley next door, so did you come over to see if he was still there?

— A Sun (2019)

或者更糟我不知道他们在不在

Or worse, I don't know if they're there.

— 爱乐之城 (2016)

张惠科在不在?

Is Zhang Huike there?

— 一个都不能少 (1999)

志乃,你在不在!

Shino, are you there!

— 七武士 (1954)

乘务员在不在

Is the attendant here?

— 釜山行 (2016)

周先生,顾先生在不在?

Mr. Zhou, is Mr. Gu here?

— 花样年华 (2000)

我现在去船在不在?

I'm going to see whether the boat is there now.

— 三峡好人 (2006)